Method and device for operating an electric machine, and motor vehicle
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United States of America Patent
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Aug 7, 2018
Grant Date -
Feb 1, 2018
app pub date -
Dec 30, 2015
filing date -
Feb 10, 2015
priority date (Note) -
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Abstract
The invention relates to a method for operating an electric machine (4), in particular of a motor vehicle (1), having a stator (10) with at least one stator coil. The stator coil is energized in order to set a required torque of the electric machine (4), and a temperature of the stator (10) of the electric machine (4) is detected by means of a temperature sensor (12). The current flowing through the stator coil is monitored in order to plausibility-check the detected temperature. In order to plausibility-check the temperature, the current in the stator coil is increased while maintaining the same torque, and the temperature is monitored for a temperature increase.
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